Cr Influence on Steel Microstructure and Kinetics of Austenite Decomposition at Near-Bay Temperatures

Andrej Samoilov; Yuri Titovets; Nikolay Y. Zolotorevsky; Gottfried Hribernig; Andreas Pichler

doi:10.4028/www.scientific.net/MSF.500-501.311

Paper Titles

Effect of Nb and V in the Development of Texture and Plastic Strain Ratio in Low Carbon Microalloyed Steels Produced by A.S.T. Technology
p.279

Development of CSP^® Processed High Strength Pipe Steels
p.287

Austenite Grain Size of Thin Slab and Its Influence on Direct Hot Strip Rolling of Nb Microalloyed Steel
p.295

Microstructural Control and DWTT Toughness in Thick-Walled Nb-Ti-V Microalloyed Linepipe Steels
p.303

Cr Influence on Steel Microstructure and Kinetics of Austenite Decomposition at Near-Bay Temperatures
p.311

Influence of Boron on Dynamic Recrystallization and Continuous Cooling Transformation of High Strength Interstitial Free Steels
p.321

Kinetics and Microstructural Aspects of the Coupling between Deformation at the Austenitic State and Ferrite Transformation in Carbon Steels
p.329

Contribution to the Understanding of Austenite Stability in a 12Cr-9Ni-4Mo Maraging Steel
p.339

Microstructure Evolution in Fine-Grained Microalloyed Steels
p.347

HomeMaterials Science ForumMaterials Science Forum Vols. 500-501Cr Influence on Steel Microstructure and Kinetics...

Cr Influence on Steel Microstructure and Kinetics of Austenite Decomposition at Near-Bay Temperatures

Abstract:

An experimental study of Fe-C-Mn-Cr low-carbon steels with varying Cr content is presented. Pronounced bay and a near-stasis behavior were shown in the alloy with 1.1% Cr. Isothermal transformation at temperatures roughly between 500 and 600°C reveals two pronounced stages. SEM examination of the microstructures showed that the rapid first stage is controlled by carbide-free bainite formation while the slow second stage is controlled by a eutectoid-type reaction. Some microstructure features of the transformation were noted and discussed. Based on experimental observations, a model of austenite decomposition was developed to account for the main features of transformation kinetics in the alloys with varying Cr content.